A typical second-generation portable cell phone jammer the flip pointers

Multi-coated lenses in a different position angles showing the soft reflective of a variety of colors .
military weapon sight with goggles, this goggles in the user's attention to prevent external light scattered at the same time, itself also played a role of a fixed exit pupil distance (ie, paste goggles eyes away from the eyepiece distance is the design of the exit pupil distance ) Pointer is the single function of the first generation portable  cell phone jammer."What is the eyepiece diopter adjustment? A: The eyepiece diopter adjustment is a technique used to make up for some users with myopia and other eye diseases. For people of normal vision is to change the relationship between the line of sight and observation of targets (ie, mutual-definition contrast),
 The reflection of light entering the eyes. constitute targeting after the light at the target light source such as the human eye in a straight line. usually reflecting the majority of laser pointer is no magnification, a small number of foreign varieties with magnification (due to the minority is not commenced). reflective laser pointer because there is no zoom magnification where the eyes can be when aiming at the same time observe, does not affect the external situation observed when aiming. and reflection as long as the red dot laser pointer to see the red dot you can target, The first generation portable  cell phone jammer have been based on laser function.
"15 What is the weapon sight of nitrogen? Weapon Sight role of nitrogen in place? Determine whether nitrogen appearance? Nitrogen has specific data? A: Weapon Sight nitrogen this process is the charge in the weapon sight internal on the inert gas nitrogen, nitrogen-purged to prevent internal lens mold in order to better adapt to the harsh environment. nitrogen Qiangmiao the generally technically there are two kinds of nitrogen technology, is one: advance in laser pointer on the open hole, and then under vacuum to nitrogen, and finally sealed with screw nitrogen mouth, A typical second-generation portable  cell phone jammer the flip pointers.
Wireless portable  cell phone jammer liberate teachers from the front of the computer. (different from the street Daxing Russian telescope that red and green stuff). Due to direct light, so if a good mirror lens multi-layer coating has been very good if there is no need multi-coated eyepiece, generally all coated mirror eyepiece coating, generally eyepiece coating monolayer coating method will be able to distinguish between the essence of multi-coated and single coated, to avoid being deceived. how to measure the quality of the lens? A: The most intuitive way is to contrast the resolving power of the lens (ie clarity).